Generation of WEB SERVICES Using PROGRAM SLICING

RAVINDRA KUMAR01710403111

SUDIP AKURA00210403111

AMIT KUMAR00710403111

BALKARAN SINGH SIDHU05810403111

OBJECTIVE

This project “Generating Web Services through Program Slicing” consists of developing web services (WS) , which are convenient and platform independent.

This project proposes a way for generation and composition of web services through Program Slicing.

PROJECT MOTIVATION

Generating Web Services is a complex task. Identifying, generating and composing services are still open issues.

Some researchers have studied on generating and composing web services by using program slicing technology, but most of them focus on preparing web services, and haven’t proposed a feasible method with the whole process of WS generation and composition

ABSTRACT

The project “Generation of web services using Program Slicing” provides a method to generate a WSDL (Web Service Description Language) file and a SOAP (Simple Object Access Protocol) message from source codes.

This also includes an approach to generate a proxy service for each web service which allows user to easily call a service.

What is a WEB SERVICE

A web service is a network accessible interface for application functionality, built using standard Internet technologies.

Clients of web services do NOT need to know how it is implemented.

Application

client

Application

code

NetworkWeb

Service

Components of a WEB SERVICE

WSDL (Web Service Description Language) File

SOAP (Simple Object Access Protocol)

Messages

UDDI (Universal Description, Discovery and Integration)

WSDL (Web Service Description Language)

Define a web service in WSDL by Writing an XML document conforming to the

WSDL specs

Describes three fundamental properties What a service does

Operations (methods) provided by the service

How a service is accessedData format and protocol details

Where a service is locatedAddress (URL) details

SOAP (Simple Object Access Protocol)

SOAP originally stood for "Simple Object Access Protocol" .

Web Services expose useful functionality to Web users through a standard Web protocol called SOAP.

SOAP is a simple markup language for describing messages between applications.

SOAP uses mainly HTTP as a transport protocol. That is, HTTP message contains a SOAP message as its payload section.

UDDI(Universal Description, Discovery

and Integration)

UDDI stands for Universal Description, Discovery and Integration.

UDDI is a directory for storing information about web services.

UDDI is a directory of web service interfaces described by WSDL.

What is PROGRAM SLICING

Program slicing is a method for automatically decomposing programs by analysing their data flow and control flow.

In general a program slice consist of those statements that may directly or indirectly affect the variables computed at a given program point.

The program point P and the variable set V, denoted by <P,V> is called a Slicing Criterion.

EXAMPLE

int i; int sum = 0; int product = 1; for(i = 0; i < N; ++i) {

sum = sum + i; product =

product *i; }

write(sum); write(product);

SOURCE CODE

int i;int sum = 0;

for(i = 0; i < N; ++i) {

sum = sum + i; } write(sum);

SLICED CODE FOR «SUM»

HARDWARE Specifications

Hard Disk : 20 GB and above

RAM : 1 GB and above

Processor : Dual Core and above

SOFTWARE Requirements

Windows XP service pack 3 or later

Visual Studio 2010

Microsoft SQL Server 2008

REFERENCES

Yingzhou Zhang , Wei Fu, Geng Yang, Lei Chen and Weifeng Zhang, “Web Service Generation Through Program Slicing” , 2010, pp. 877-887

THANK YOU